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| 型號(hào)： | 110H1901-2RD4 |
| 廠商： | POWER-ONE INC |
| 元件分類(lèi)： | 電源模塊 |
| 英文描述： | 1-OUTPUT AC-DC REG PWR SUPPLY MODULE |
| 封裝： | 168.50 X 111.20 MM, 38.70 MM HEIGHT, METAL, CASE H02, MODULE |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大?。?/td> | 358K |
| 代理商： | 110H1901-2RD4 |
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H-Family
AC-DC Converters <100 W
Benign Environment
10 - 64
Edition 2/96 - Melcher AG
MELCHER
The Power Partners.
10.3
Table 2: H11 connector pin allocation
Electrical Determination
H1000
H2000
H3000
Pin
Ident
Pin
Ident
Pin
Ident
Inhibit control input
2
i
2
i
2
i
Safe Data or ACFAIL
5
D or V
5
D or V
5
D or V
Output voltage (positive)
8
Vo1+
8
Vo3+
Output voltage (negative)
11
Vo1–
11
Vo3–
Control input +
14
R
Control input –
17
G
Output voltage (positive)
14
Vo2+
14
Vo2+
Output voltage (negative)
17
Vo2–
17
Vo2–
Output voltage (positive)
20
Vo1+
20
Vo1+
20
Vo1+
Output voltage (negative)
23
Vo1–
23
Vo1–
23
Vo1–
Protective earthing 1
26
AC input voltage
29
N
29
N
29
N
AC input voltage
32
P
32
P
32
P
1 Leading pin (pregrounding)
Degree of Protection
Condition: Female connector fitted to the unit
IP 40:
All units, except those with options D or V incorporating potentiometer adjustment.
IP 20:
Type fitted with options D or V incorporating potentiometer.
Fig. 1
AC-DC converter block diagram
Input
filter
Current
limitation
output 3
Main control circuit
Current
limitation
output 2
29
11
8
23
5
26
32
17
14
20
2
Forward
converter
approx.
70
kHz
Y
1
Y
VDR
14
17
1 Single output modules H1000 (R input)
Functional Description
The input voltage is fed via an input filter, an inrush current
limiter and a bridge rectifier to the input capacitor. This ca-
pacitor sources a single transistor forward converter. Each
output is powered by a separate secondary winding of the
main transformer. The resultant voltages are rectified and
their ripples smoothed by a power choke. The control logic
senses the main output voltage
Uo1 and generates, with re-
spect to the maximum admissible output currents, the con-
trol signal for the primary switching transistor. This signal is
fed back via a coupling transformer.
The auxiliary outputs
Uo2 and Uo3 are unregulated. Each
auxiliary output's current is sensed and transferred to the
main control circuit using a current transformer. If one of the
outputs is driven into current limit, the other outputs will re-
duce their output voltages as well because all output cur-
rents are controlled by the same control circuit.
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